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1.) Safety
Vanderbilt cites evidence that roundabouts are safer due to something called "geometry," saying, "they reduce the number of places where one vehicle can strike another by a factor of four." The problem is, Americans don't care about safety, they care about the illusion of safety.
You're eight times more likely to be killed in a car than you are in an airplane, yet when was the last time you heard about "fear of driving?" Given the mainstream media attention plane crashes receive, we're betting you know at least one person who's too afraid to fly.
The red and green lights at intersections reassure American drivers that someone else is making crucial safety decisions for them. When the light is green, it's safe to go; when it's red, it's safe to stop. No more thought is required, leaving US drivers to focus on what's really important. Like their Big Macs.
